340978652 has 18 divisors (see below), whose sum is σ = 694135512. Its totient is φ = 146133624.

The previous prime is 340978633. The next prime is 340978663. The reversal of 340978652 is 256879043.

It is a super-2 number, since 2×340978652² = 232532882239474208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 869648 + ... + 870039.

It is an arithmetic number, because the mean of its divisors is an integer number (38563084).

Almost surely, 2^340978652 is an apocalyptic number.

It is an amenable number.

340978652 is an abundant number, since it is smaller than the sum of its proper divisors (353156860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340978652 is a wasteful number, since it uses less digits than its factorization.

340978652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739705 (or 1739696 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 340978652 is about 18465.6072740649. The cubic root of 340978652 is about 698.6222233002.

The spelling of 340978652 in words is "three hundred forty million, nine hundred seventy-eight thousand, six hundred fifty-two".